DE3929488C2 - - Google Patents

Info

Publication number
DE3929488C2
DE3929488C2 DE3929488A DE3929488A DE3929488C2 DE 3929488 C2 DE3929488 C2 DE 3929488C2 DE 3929488 A DE3929488 A DE 3929488A DE 3929488 A DE3929488 A DE 3929488A DE 3929488 C2 DE3929488 C2 DE 3929488C2
Authority
DE
Germany
Prior art keywords
salt bath
blind hole
metal part
nitrating agent
nitriding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE3929488A
Other languages
German (de)
English (en)
Other versions
DE3929488A1 (de
Inventor
Takesi Kobe Hyogo Jp Omori
Osamu Matsumoto
Tatsuo Himeji Hyogo Jp Horimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3929488A1 publication Critical patent/DE3929488A1/de
Application granted granted Critical
Publication of DE3929488C2 publication Critical patent/DE3929488C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/48—Nitriding
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/46—Salt baths

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
DE3929488A 1988-09-12 1989-09-05 Verfahren zur salzbad-nitrierung eines metallteils Granted DE3929488A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63228075A JP2723923B2 (ja) 1988-09-12 1988-09-12 金属部品の塩浴窒化処理方法

Publications (2)

Publication Number Publication Date
DE3929488A1 DE3929488A1 (de) 1990-03-15
DE3929488C2 true DE3929488C2 (cs) 1990-08-23

Family

ID=16870803

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3929488A Granted DE3929488A1 (de) 1988-09-12 1989-09-05 Verfahren zur salzbad-nitrierung eines metallteils

Country Status (4)

Country Link
US (1) US4992309A (cs)
JP (1) JP2723923B2 (cs)
KR (1) KR910009839B1 (cs)
DE (1) DE3929488A1 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695118B1 (fr) * 1992-09-02 1994-10-07 Air Liquide Procédé de formation d'une couche barrière sur une surface d'un objet en verre.
US5405456A (en) * 1993-10-21 1995-04-11 National Science Council Process of surface hardening for titanium alloy by molten salt carburization
KR100867721B1 (ko) 2007-09-03 2008-11-10 이홍재 한방용 침 어셈블리

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53144435A (en) * 1977-05-24 1978-12-15 Nagata Tateo Salt bath softening nitriding agent
DD156877A3 (de) * 1980-06-10 1982-09-29 Ulrich Baumgart Regenerierungsmittel fuer nitriersalzbaeder

Also Published As

Publication number Publication date
DE3929488A1 (de) 1990-03-15
KR910009839B1 (ko) 1991-11-30
JP2723923B2 (ja) 1998-03-09
KR900004959A (ko) 1990-04-13
US4992309A (en) 1991-02-12
JPH0277568A (ja) 1990-03-16

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITSUBISHI DENKI K.K., TOKIO/TOKYO, JP